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FusionCloud Troubleshooting Guide 02

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Docker Troubleshooting

Docker Troubleshooting


  • Docker is suspended.
  • The node where Docker resides and the corresponding pod are abnormal.

Possible Causes

High-concurrent requests cause Docker suspension.

Troubleshooting Method

  1. Use PuTTY to log in to the om_core1_ip node.

    The default username is paas, and the default password is QAZ2wsx@123!.

  2. Run the following command to check whether the node is normal:

    kubectl get nodes --all-namespaces

    default paas-10-120-193-12 Ready 4h
    default paas-10-120-193-243 Ready 4h
    default paas-10-120-193-9 NotReady 4h
    manage manage-cluster1-42074173-09j3n Ready 2h

    The preceding command output shows that paas-10-120-193-9 is abnormal.

  3. Check whether the abnormality is caused by Docker.

    1. Run the following command to obtain the IP address of the abnormal node:

      kubectl get nodes NODENAME -n NAMESPACE -o yaml

      NODENAME indicates the name of the abnormal node. NAMESPACE indicates the namespace of the abnormal node.

      externalID: manage-cluster1-42074173-09j3n
      name: manage-cluster1-42074173-09j3n

      The preceding command output shows that the IP address is

    2. Log in to the abnormal node as user paas, switch to user root, and run the following command:
      docker ps
      • If the output is displayed normally, Docker is not suspended.
      • If the output is not displayed for a long time, perform the subsequent step, because Docker is suspended.

  4. Run the following command to restart Docker:

    service docker restart

Updated: 2019-06-10

Document ID: EDOC1100063248

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